CN107737869A - Improve the coating colloid of apperance release property and the preparation method of coat - Google Patents
Improve the coating colloid of apperance release property and the preparation method of coat Download PDFInfo
- Publication number
- CN107737869A CN107737869A CN201711207256.XA CN201711207256A CN107737869A CN 107737869 A CN107737869 A CN 107737869A CN 201711207256 A CN201711207256 A CN 201711207256A CN 107737869 A CN107737869 A CN 107737869A
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- CN
- China
- Prior art keywords
- coat
- colloid
- iron oxide
- coating
- brown iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
Abstract
The present invention proposes a kind of coating colloid for improving apperance release property, and the coating colloid is mixed by brown iron oxide with resin according to part by weight, and the present invention also proposes a kind of coat preparation method, comprises the following steps：Brown iron oxide and resin are mixed at least 20min according to part by weight；Colloid mixture is coated uniformly on die surface using banister brush, coating thickness is not less than 1.5mm；After coating to be coated is dried, layer surface polishing refinement will be coated using 200 mesh sand paper, after coat being formed using the coating colloid of the present invention, the operation that releasing agent is safeguarded is coated to mould before every production now can be substituted, effectively reduce the surface roughness of mould, the mould surface quality after molding, molding qualification rate lifting 10% are improved, sand mold, the repairing rate of core reduce by 20%.
Description
Technical field
The present invention relates to sand casting technical field, more particularly to a kind of coating colloid for improving apperance release property and coating
The preparation method of layer.
Background technology
In the preamble production of casting, moulding molding is an extremely important ring, how to improve molding efficiency, and it is difficult to reduce molding
Degree turns into urgent problem.The shaping of sand mold, intensity and surface quality will all have a strong impact on casting during moulding molding
The quality of semi-finished product, and then influence the quality of casting.So how to solve the liftability for improving apperance, and ensure sand mold matter
Amount, for realizing that enterprise efficiency multiplication is significant.
During actual production, the brushing releasing agent on mould is often used, plays the lubrication between sand mold and apperance.But
This method has significant limitation in actual production.
（1）Releasing agent master has certain corrosiveness to mould and chemical solvent therein is volatile, volatilization gas tool
There are certain smell and toxicity, suck and contact for a long time the health for endangering mould attendant.
（2）Contain substantial amounts of soil and dust in molding sand, be easy to pollute releasing agent during moulding.So that the demoulding
The lubrication of agent greatly reduces.
（3）It is required for spraying releasing agent again before production every time, has a strong impact on the production cycle, and for large mold,
The hand spray time is grown, and difficulty height all seriously constrains coating quality and efficiency.
The content of the invention
It is necessary to propose a kind of coating colloid for the raising apperance release property for improving mold releasability.
It there is a need to and propose a kind of preparation method of coat.
A kind of coating colloid for improving apperance release property, the coating colloid are according to weight by brown iron oxide and oleoresin
Amount is than being 1.5~2.5:What 98~102 ratio mixed.
The method that a kind of coating colloid of raising apperance release property described in utilization prepares coat, comprises the following steps：
According to weight ratio it is 1.5~2.5 by brown iron oxide and oleoresin:98~102 ratio mixes at least 20min,
Metallic luster is presented to colloid mixture；
Colloid mixture is coated uniformly on die surface using banister brush, coating thickness is not less than 1.5mm, so that colloid mixture is filled out
Fill in infiltration to die surface gap, the good coat of adhesive effect is formed with die surface；
After coating to be coated is dried, layer surface polishing refinement will be coated using 200 mesh sand paper, is polishing to range estimation it can be seen that mould table
Face color, continuous, bright and clean, corrosion resistant, non-damageable coat is formed, then measured using calibrator or thickness measuring plate
The thickness of coat is to meeting technological requirement.
After forming coat using the coating colloid of the present invention, mould is coated before every production now can be substituted
The operation that releasing agent is safeguarded, effectively reduce the surface roughness of mould.The efficiency of molding is significantly improved, reduces mould
The maintenance cost of tool, improve the mould surface quality after molding, molding qualification rate lifting 10%, sand mold, the repairing rate drop of core
Low 20%.Avoid sand mold, the molding of core is scrapped follow-up burning into sand with casting etc. and scrapped, ensure that the surface quality of casting.
Embodiment
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to being further described.
The embodiments of the invention provide a kind of coating colloid for improving apperance release property, the coating colloid is by iron oxide
Powder is 1.5~2.5 according to weight ratio with oleoresin:What 98~102 ratio mixed.
Coating colloid is made up of brown iron oxide and oleoresin in the present invention, does not contain other materials, is avoided it
His element or material are introduced in sand mold or core, and oleoresin viscosity is high, adhere to mould solid after drying, and are reduced
Mold surface roughness, serve the effect of isolation molding sand or core sand and die surface very well.
Further, the weight ratio of the brown iron oxide and oleoresin is 2：100.
Further, the granularity of the brown iron oxide is the mesh of 150 mesh~325, and the composition of the brown iron oxide is not low for purity
In 99% ferric oxide powder.
The coating colloid that the embodiment of the present invention also provides the raising apperance release property described in a kind of utilization prepares coat
Method, comprise the following steps：
According to weight ratio it is 1.5~2.5 by brown iron oxide and oleoresin:98~102 ratio mixes at least 20min,
Metallic luster is presented to colloid mixture；
Colloid mixture is coated uniformly on die surface using banister brush, coating thickness is not less than 1.5mm, so that colloid mixture is filled out
Fill in infiltration to die surface gap, the good coat of adhesive effect is formed with die surface；
After coating to be coated is dried, layer surface polishing refinement will be coated using 200 mesh sand paper, is polishing to range estimation it can be seen that mould table
Face color, continuous, bright and clean, corrosion resistant, non-damageable coat is formed, then measured using calibrator or thickness measuring plate
The thickness of coat is to meeting technological requirement.
Further, in the step of mixing brown iron oxide and oleoresin, first iron oxide is weighed respectively in proportion
Oleoresin, then from another container, is poured slowly into described hold by powder and oleoresin into different containers
In container, during oleoresin is poured slowly into, brown iron oxide is added with stream, by iron oxide before oleoresin is finished down
Powder adds.
Further, the mould is wood mould.
Further, the step of " colloid mixture being coated uniformly on into die surface using banister brush " be：First, using fur
Brush first brushes colloid mixture in die surface, forms basic unit's coat, when basic unit's coat drying to when not touching with one's hand, brushes
Second layer coat, third layer coat, the thickness to coat are not less than 1.5mm.
Further, when brushing basic unit's coat, taken using banister brush is viscous after colloid mixture along vertical with wooden model lines
Direction is brushed on wooden model surface, so that colloid mixture is sufficient filling with wooden model surface gap.
Module or unit in device of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly
Enclose, one of ordinary skill in the art will appreciate that all or part of flow of above-described embodiment is realized, and will according to right of the present invention
Made equivalent variations are sought, still falls within and invents covered scope.
Claims (8)
- A kind of 1. coating colloid for improving apperance release property, it is characterised in that：The coating colloid is by brown iron oxide and oiliness Resin is 1.5~2.5 according to weight ratio:What 98~102 ratio mixed.
- 2. the coating colloid of apperance release property is improved as claimed in claim 1, it is characterised in that：The brown iron oxide and oiliness The weight ratio of resin is 2:100.
- 3. the coating colloid of apperance release property is improved as claimed in claim 1, it is characterised in that：The granularity of the brown iron oxide For the mesh of 150 mesh~325, the composition of the brown iron oxide is not less than 99% ferric oxide powder for purity.
- 4. the method that a kind of coating colloid of raising apperance release property using described in one of claims 1 to 33 prepares coat, It is characterized in that comprise the following steps：According to weight ratio it is 1.5~2.5 by brown iron oxide and oleoresin:98~102 ratio mixes at least 20min, Metallic luster is presented to colloid mixture；Colloid mixture is coated uniformly on die surface using banister brush, coating thickness is not less than 1.5mm, so that colloid mixture is filled out Fill in infiltration to die surface gap, the good coat of adhesive effect is formed with die surface；After coating to be coated is dried, layer surface polishing refinement will be coated using 200 mesh sand paper, is polishing to range estimation it can be seen that mould table Face color, continuous, bright and clean, corrosion resistant, non-damageable coat is formed, then measured using calibrator or thickness measuring plate The thickness of coat is to meeting technological requirement.
- 5. method as claimed in claim 4, it is characterised in that：Brown iron oxide and oleoresin are mixed the step of In, first brown iron oxide and oleoresin are weighed respectively in proportion into different containers, will then from another container Oleoresin is poured slowly into the container, and during oleoresin is poured slowly into, brown iron oxide is added with stream, Oleoresin adds brown iron oxide before being finished down.
- 6. method as claimed in claim 4, it is characterised in that：The mould is wood mould.
- 7. method as claimed in claim 6, it is characterised in that：" colloid mixture is coated uniformly on mould table using banister brush The step of face " is：First, first colloid mixture is brushed in die surface using banister brush, forms basic unit's coat, treat the basic unit Coat drying brushes second layer coat, third layer coat to when not touching with one's hand, and the thickness to coat is not less than 1.5mm.
- 8. method as claimed in claim 7, it is characterised in that：When brushing basic unit's coat, epoxy glue is taken using banister brush is viscous Brushed after body along the direction vertical with wooden model lines on wooden model surface, so that colloid mixture is sufficient filling with wooden model surface gap It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207256.XA CN107737869A (en) | 2017-11-27 | 2017-11-27 | Improve the coating colloid of apperance release property and the preparation method of coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207256.XA CN107737869A (en) | 2017-11-27 | 2017-11-27 | Improve the coating colloid of apperance release property and the preparation method of coat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107737869A true CN107737869A (en) | 2018-02-27 |
Family
ID=61239375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711207256.XA Pending CN107737869A (en) | 2017-11-27 | 2017-11-27 | Improve the coating colloid of apperance release property and the preparation method of coat |
Country Status (1)
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| CN (1) | CN107737869A (en) |
Citations (8)
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|---|---|---|---|---|
| CN1631641A (en) * | 2004-12-24 | 2005-06-29 | 瓦房店日瑞铸模有限公司 | Composite resin die |
| CN101199984A (en) * | 2006-12-14 | 2008-06-18 | 沈阳汇亚通铸造材料有限责任公司 | Release agent of sand mould and sand core and preparing process thereof |
| CN101716655A (en) * | 2009-12-16 | 2010-06-02 | 宁夏共享铸钢有限公司 | Casting method of large water turbine blade |
| CN102601318A (en) * | 2011-12-15 | 2012-07-25 | 宁夏共享集团有限责任公司 | Casting method for thin-wall annular cast |
| CN103587015A (en) * | 2013-11-21 | 2014-02-19 | 四川省祥业机械铸造有限公司 | Resin mold and mold making technology |
| CN103878299A (en) * | 2014-03-03 | 2014-06-25 | 珠海市斗门福联造型材料实业有限公司 | Sintered strippable light-colored casting coating and preparation method thereof |
| CN106363129A (en) * | 2016-08-31 | 2017-02-01 | 共享铸钢有限公司 | Casting technique of supporting frame for building |
| CN106825403A (en) * | 2017-01-16 | 2017-06-13 | 共享装备股份有限公司 | A kind of wooden one core box of casting resin and preparation method thereof |
-
2017
- 2017-11-27 CN CN201711207256.XA patent/CN107737869A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| CN1631641A (en) * | 2004-12-24 | 2005-06-29 | 瓦房店日瑞铸模有限公司 | Composite resin die |
| CN101199984A (en) * | 2006-12-14 | 2008-06-18 | 沈阳汇亚通铸造材料有限责任公司 | Release agent of sand mould and sand core and preparing process thereof |
| CN101716655A (en) * | 2009-12-16 | 2010-06-02 | 宁夏共享铸钢有限公司 | Casting method of large water turbine blade |
| CN102601318A (en) * | 2011-12-15 | 2012-07-25 | 宁夏共享集团有限责任公司 | Casting method for thin-wall annular cast |
| CN103587015A (en) * | 2013-11-21 | 2014-02-19 | 四川省祥业机械铸造有限公司 | Resin mold and mold making technology |
| CN103878299A (en) * | 2014-03-03 | 2014-06-25 | 珠海市斗门福联造型材料实业有限公司 | Sintered strippable light-colored casting coating and preparation method thereof |
| CN106363129A (en) * | 2016-08-31 | 2017-02-01 | 共享铸钢有限公司 | Casting technique of supporting frame for building |
| CN106825403A (en) * | 2017-01-16 | 2017-06-13 | 共享装备股份有限公司 | A kind of wooden one core box of casting resin and preparation method thereof |
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Application publication date: 20180227 |